Birnbaum Mathew R, McLellan Beth N, Shapiro Jerry, Ye Kenny, Reid Sophia D
Department of Medicine, Division of Dermatology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, NY, USA.
Skin Appendage Disord. 2018 Oct;4(4):304-307. doi: 10.1159/000485522. Epub 2017 Dec 16.
There is limited research into normative hair density values in individuals of Hispanic descent.
In order to help establish baseline density values in these individuals, we evaluated the hair density in 99 Americans of Hispanic descent and compared them with the values in 44 individuals of African descent and 23 Caucasians. Participants were recruited from a New York City medical center and self-identified their ethnicity. Biracial individuals were excluded from the study.
The hair density means ± SD ranged from 169 ± 31 to 178 ± 33/cm in Americans of Hispanic descent, from 148 ± 25 to 160 ± 27/cm in individuals of African descent, and from 214 ± 28 to 230 ± 33/cm in Caucasian individuals. All differences in hair densities between the ethnicities were statistically significant ( values ranging from 3.03 × 10 to 0.0249).
While trichoscopy is not as accurate as invasive histological assessment of hair density or phototrichogram, it is still a reliable and fast method for assessing hair density. Increased awareness of ethnic variances in hair density can help clinicians and researchers diagnose hair disorders, monitor response to therapy, and conduct hair-related research in these patients.
对西班牙裔个体的正常头发密度值的研究有限。
为了帮助确定这些个体的基线密度值，我们评估了99名西班牙裔美国人和44名非裔个体以及23名高加索人的头发密度。参与者从纽约市的一个医疗中心招募，并自行确定其种族。混血个体被排除在研究之外。
西班牙裔美国人的头发密度均值±标准差为169±31至178±33根/平方厘米，非裔个体为148±25至160±27根/平方厘米，高加索人为214±28至230±33根/平方厘米。各民族之间头发密度的所有差异均具有统计学意义（值范围为3.03×10至0.0249）。
虽然毛发镜检查不如侵入性的头发密度组织学评估或毛发照片图准确，但它仍然是一种可靠且快速的头发密度评估方法。提高对头发密度种族差异的认识有助于临床医生和研究人员诊断头发疾病、监测治疗反应以及对这些患者进行与头发相关的研究。
